This is a plugin for .xls report generation
it's based on the ReportPluginPatch, so first you'll need to update your trac installation with this simple patch.
pyExcelerator python library is needed for the plugin to run.
If you have any issues, create a new ticket.
Download the zipped source from here.
copy the .py to the plugins directory of your trac installation
* cleaned up a little bit * added spanish support
basic plugin created